01 -
Turn your oven to 350 degrees and let it preheat.
02 -
Open both packages of cinnamon rolls and set the icing containers aside. Using a sharp knife, carefully cut each cinnamon roll into quarters.
03 -
Add the quartered cinnamon roll pieces to a greased baking dish. Spread them out so they're fairly even and level across the bottom.
04 -
In a bowl, whisk together the eggs, milk, vanilla, and cinnamon until well combined. Pour this mixture evenly over the cinnamon roll pieces.
05 -
Rinse and dry the blueberries, then sprinkle them evenly over the top of the cinnamon rolls and egg mixture.
06 -
Bake uncovered for 40 to 45 minutes until the egg is set and the top is golden brown. The cinnamon rolls should be cooked through.
07 -
While the casserole is baking, warm the icing in the microwave according to the package directions. Once the casserole comes out of the oven, drizzle the warm icing all over the top.
08 -
Let the casserole cool for a few minutes before cutting into it. Serve warm and enjoy your easy breakfast treat.